Evidence map›Paper›PMID 23794717›Full record

ArticleJournal of medical genetics2013

Associations of common variants in HFE and TMPRSS6 with iron parameters are independent of serum hepcidin in a general population: a replication study.

Tessel E Galesloot, Anneke J Geurts-Moespot, Martin den Heijer, Fred C G J Sweep, Robert E Fleming, Lambertus A L M Kiemeney, Sita H Vermeulen, Dorine W Swinkels

Open access · greenAbstract read
In one paragraph

Article in Journal of medical genetics, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
3.3field-weighted citation impact, top 7% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

23 citing papers in PubMed, 1 synthesis or guideline pooled it, 41 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Biology of Anemia: A Public Health Perspective.The Journal of nutrition · 2023
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Observational
  10. Article
  11. Article
  12. Article
  13. Iron overload and cirrhosis in referredCanadian liver journal · 2020
    Article
  14. Article
  15. Associations of Common Variants inDisease markers · 2019
    Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. Iron-refractory iron deficiency anemia.Turkish journal of haematology : official journal of Turkish Society of Haematology · 2015
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 2 countries.

Tessel E GaleslootDepartment for Health Evidence, Radboud University Medical Centre, Nijmegen, The Netherlands.
Anneke J Geurts-Moespot
Martin den Heijer
Fred C G J Sweep
Robert E Fleming
Lambertus A L M Kiemeney
Sita H Vermeulen
Dorine W Swinkels
Radboud University Nijmegen · NLAmsterdam UMC Location Vrije Universiteit Amsterdam · NLSaint Louis University · US

Funding

Regulatory Role of Transferrin in Erythropoiesis and Iron MetabolismR01DK095112 · NIDDK · SAINT LOUIS UNIVERSITY · PI Robert E Fleming, Yelena Ginzburg · 2012 to 2026
$5.4M
NIDDK NIH HHS R01 DK095112
6 · The paper itself

Abstract

backgroundGenome-wide association studies have convincingly shown that single nucleotide polymorphisms (SNPs) in HFE and TMPRSS6 are associated with iron parameters. It was commonly thought that these associations could be explained by the intermediate effect on hepcidin concentration. A recent study in an isolated Italian population, however, concluded that these associations were not exclusively dependent on hepcidin values. We report here the second study to investigate the role of hepcidin in the associations between common variants in HFE and TMPRSS6 with iron parameters.

methodsWe extracted 101 SNPs in HFE and TMPRSS6 from genome-wide imputed SNP data of 1832 individuals from the general population (Nijmegen Biomedical Study). Single locus and haplotype associations with serum iron parameters and hepcidin were studied using linear regression analyses.

resultsWe found that HFE rs1800562 and TMPRSS6 rs855791 are the main determinants of HFE and TMPRSS6 related variation in serum iron, ferritin, transferrin saturation, and total iron binding capacity. These SNPs are associated with the ratios hepcidin/ferritin (p<1×10(-5)) and hepcidin/transferrin saturation (p<1×10(-3)), but not with serum hepcidin (p>0.2). Adjustment for hepcidin or the ratio hepcidin/ferritin did not decrease the strength of the SNP-iron parameter associations.

conclusionsOur results do not support an intermediate role for hepcidin in the SNP-iron parameter associations, which confirms previous findings, and indicate a pleiotropic SNP effect on the hepcidin ratios and the iron parameters. Taken together, this suggests that there might be other, yet unknown, serum hepcidin independent mechanisms which play a role in the association of HFE and TMPRSS6 variants with serum iron parameters.

Indexed as

AgedCohort StudiesFemaleFerritinsGenome-Wide Association StudyHemochromatosis ProteinHepcidinsHistocompatibility Antigens Class IHumansIronMaleMembrane ProteinsMiddle AgedNetherlandsPolymorphism, Single NucleotideSerine EndopeptidasesFerritinsHemochromatosis ProteinHepcidinsHFE protein, humanHistocompatibility Antigens Class IIronMembrane ProteinsSerine EndopeptidasesTMPRSS6 protein, humanComplex traitsGenetic epidemiologyHaematology (incl Blood transfusion)

Identifiers

PMID23794717
PMCPMC7784039
OpenAlexW2138195607

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.